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Mixed-signal IC for motion, power management rolls

Posted: 06 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:mixed-signal circuits? customizable printer platform? ADC?

S.A.B.Re mixed-signal IC from ST

STMicroelectronics has unveiled the industry's first IC with a complete set of configurable and customizable analog functions for printer, fax and POS system applications. The Structured Architecture of Bridges and Regulators (S.A.B.Re) solution combines low development costs and short time-to-market with maximum flexibility.

The S.A.B.Re solution complements ST's SPEAr or Structured Processor Enhanced Architecture family of customizable digital engines for printers, scanners and other embedded-control applications, extending the concept of easy configurability and customizability to the analog domain. Together, SPEAr and the S.A.B.Re constitute the first complete customizable printer platform in the market.

Configurable solution
The S.A.B.Re device integrates many features that can be configured and customized, including motor drivers, regulators, an ADC, operational amplifiers and voltage comparators. This flexibility allows customers to quickly adapt the S.A.B.Re device to the specific needs of a particular application.

Certain architectural changes can be programmed via the serial interface and/or GPIOs, while more complex functions can be customized with metal layers implementing specific macro functions. The metal customization does not modify any active part of the silicon, minimizing the risk of undesired parasitic effects, which are the biggest cause of problems in mixed-signal circuits.

The S.A.B.Re IC has been primarily developed for motion and power supply parts in printer applications. Standing out from existing motor drivers and switching regulators, ST's device functions as the "master" and manages the whole power section of the application with specific programmable PowerUp routines before the digital IC switches on. With its flexibility, S.A.B.Re can address any high-power, high-voltage analog and motor applications across the industrial segment, said ST.

Powerful IC
The main components of the S.A.B.Re IC are as follows: four configurable bridges that can also function as switching regulators or power charge, a variable-voltage buck switching regulator, a switching regulator controller, a linear regulator, a multichannel configurable 9bit ADC, two operational amplifiers, a bidirectional serial interface and several GPIOs.

S.A.B.Re's very low power consumption and minimal power dissipation in power-off mode meet the requirements of energy-efficiency programs such as the Energy Star.

Samples are available now, with volume production planned for Q4 '07. Volume pricing for the S.A.B.Re IC ranges from $2.20 to 2.50.

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